無畸變波 的英文怎麼說
中文拼音 [wújībiànbō]
無畸變波
英文
undistorted wave-
Dbw, sbw series single - phase and three - phase super power voltage regultor of new age having the advantages of large capacity, high efficiency, wide range, high precision, strong protection, without wave - form distortion, reliadle operation and casy installation, etc
Sbw系列單、三相大功率電力穩壓器是我公司在參數照國際同類產品、結合我國國性的基礎上研製生產的新一代節能電力穩壓器，具有容量大、效率高、穩壓范圍寬、精度高、保護功能強、無波形畸變、運行可靠、維護簡便等特點。At present, the typic harmful current detection methods are the fast fourier transform algorithm in frequency domain and methods based on the instantaneous reactive power theory, these methods all require some transform and quick, real - time calculating, so high precision analog multipliers or high speed dsp chip with fast a / d are needed, this results in complex circuit and high cost ， which have restricted the development of apf
目前畸變電流檢測常用的方法有頻域法的fft和基於瞬時無功理論的畸變電流檢測法。這些方法均有一定的變換，需要快速、實時運算，因此必須使用高速的數字微處理器和高性能a / d轉換器，這必將大大提高系統成本，使得電路結構復雜，在一定程度上限制了有源濾波器的發展。In the distribution system, many capacitor banks are applied to decrease the loss of the network. the harmonic resonance may be incurred between the network and the capacitor banks in the harmonic frequency, thus the security of the system may be destroyed because of the high harmonic distortion level
配電網中裝設了大量的電容器進行無功優化來降低網損，但在諧波頻率下，容易產生系統與電容器之間的諧波諧振或諧波放大，從而使系統的諧波畸變率變大，破壞了系統的安全運行。This approach is called fas. this approach uses characteristics of trigonometric function, respectively computes the amplitude of fundamental component and inactive power current separates them by low pass filter and acquires and inactive power current
該方法利用三角函數的特性，對畸變電流中的基波成分和無功電流分量的振幅分別進行計算，然後經過低通濾波器把它們分離出來，最後得到基波有功和無功電流分量。The power angle characteristics are acquired and compared with the unsaturated curves. it is concluded that the stability limit of the power angle is less than 90 degree. reactive power regulating curves are calculated and compared with those curves when saturation effect is not considered, the result is that u type curves are deviated to the right
通過對同步發電機各種運行曲線的計算，在已有文獻的基礎上更進一步分析了鐵磁材料飽和以及磁場畸變對同步發電機運行特性和參數的影響；求出了空載特性曲線和零功率負載特性曲線，在不同的電樞電流下計算得到的波梯電抗不同；求出了功角特性曲線，與不計飽和時的功角特性曲線相比較，功角穩定極限小於90 ；求出無功調節曲線，與不計飽和時相比較， u型曲線向右偏移。The resolution of optical system can not reach its diffraction limit because of the phase aberrations caused by atmospheric turbulence and other wavefront errors. adaptive optics technology uses deformable mirrors to perform dynamic phase modulation and endow optical system the ability to decrease the influence of dynamic wavefront errors
大氣湍流等動態干擾使光波面相位發生畸變，使光學系統的解析度無法達到其衍射極限，而自適應光學系統使用變形鏡對光波面進行動態相位調制，賦予了光學系統能動可變的能力而有效地解決了動態干擾的問題。The non - ideal bemf waveform of bldcm is often caused by two facts. one is that the platform width of bemf waveform is less than 120 ; the other is the cogging harmonics existed in the bemf waveform
非理想反電動勢波形的無刷直流電機有兩種情況，一種是反電動勢的梯形波的平頂寬度小於120 ；一種是由於磁場分佈受齒槽的影響，反電動勢存在齒諧波，使其波形發生畸變。The detecting method of dvr is different from harmonic and reactive current detecting methods. it need detect not only total harmonic distortion but also the difference between fundamental wave component and reference value
Dvr的檢測方法與諧波、無功電流的檢測不同，不但需要檢測出除基波分量之外的總畸變分量，還要檢測出基波分量與基波基準值之差。To put into operation a large amount of non - linear load, make in harmony wave of rural power grids serious becoming in pollution, pass to rural local electric wire netting main in harmony analysis of wave source, put forward in order to restrain from insert rural power grids in harmony wave source voltage total in harmony wave distortion rate and the containing rate change last device number pulsating for increase of goal, increase the pulse of the current change device and install light specified value electricity active wave filter mix with passive wave filter near the harmonics source to control the wave in harmony
摘要大量非線性負荷的投運，使農村電網的諧波污染日趨嚴重，通過對農村地方電網主要諧波源的分析，最終提出了以限制接入農村電網的諧波源的電壓總諧波畸變率和各次諧波電壓含有率為目標的增加換流裝置脈動數，以及在諧波源附近裝設小額定值的電力有源濾波器配以無源濾波器的混合型電力濾波方式，以進行諧波治理。Apf can achieve dynamic compensation for harmonics and reactive current, and the compensate performance is not affected by the impedance of the electric network, it has advantages as follows, fast response, high controllability and adaptability, etc. analysis is performed to existing main circuit topology, harmful current detecting method and current tracking control of apf in this paper
有源電力濾波器可實現對諧波和無功的動態補償，其補償特性不受系統阻抗的影響，具有響應快、可控性高、自適應性強等優點。本文對現有的有源電力濾波器的各種主電路拓撲、畸變電流檢測和電流跟蹤控制方法進行了分析。The influence of optical source chirp on femtosecond soliton interaction is studied numerically, and the unequal amplitude method can reduce the interaction. in addition high - order coupled equations governing the evolution of two orthogonal polarization components of the same wave are derived by using multi - dimension derivation expansion method of singular perturbation theory and the dispersion relation. furthermore, a class of optical solitary wave solutions, such as the bright - bright, dark - dark, bright - dark, and combined solitary waves are found under certain parametric conditions
數值研究了源啁啾飛秒孤子間相互作用，提出了抑制該作用的可能方案；用奇異攝動多重尺度導數展開法和色散關系推導了耦合高階非線性薛定諤方程（ chnlse ） ，並用行波變換法得到了一系列孤波解析解，分析了它們在光纖中傳輸的必要條件，也討論了它們的穩定性，為實現飛秒光脈沖在光纖中的無畸變傳輸作理論上的探索。We raised a new model that we disassemble the character into several parts, which could be recognized by computer topologically based on the high - frequency wavelet coefficients vector, disregarding the traditional extraction method that used the statistical or structural feature based on the individual pixel in the 2 - dim plane of character. moreover, the concept of multi - dim cognizing feature model was put forward by encoding the character, according to its " location and run - length information. the information confusion and redundancy could be largely eliminated, as leaded to the improving of the preciseness when recognizing the character
克服以往結構、統計方法在字元特徵提取中無法剔除噪聲、偏移等冗餘信息的不足，以認知的新思路分析圖像，給出基於小波子圖的筆劃定義，給出一種注重反映字元部分最為重要的筆劃的類型、數量、遊程、位置特徵，改進了基於字元二維圖像的統計與結構特徵提取方法因變形，畸變造成信息混淆和冗餘；給出了提取多屬性字元認知特徵的方法和識別機制，實驗表明，該方法能有效的識別字元； 3Tal series high exchange filter installation, 6 - 35kv exchange mainly for electricity grid, as scheduled filter out the high harmonics currents, reducing grid voltage sinusoidal wave distortions rate, while providing compatibility for mouttalos no credit, improve the power factor lines, lowering the depletion, save energy, clean grid
的電力交流電網中，作為濾除預定的高次諧波電流，降低電網電壓正弦波畸變率，同時為基波提供容性無功提高線路的功率因數達到降低損耗節約電能凈化電網的目的。Tal series high exchange filter installation, 6 - 35kv exchange mainly for electricity grid, as scheduled filter out the high harmonics currents, reducing grid voltage sinus - oidal wave distortions rate, while providing compatibility for mouttalos no credit, improve the power factor lines, lowering the depletion, save energy, clean grid
的電力交流電網中，作為濾除預定的高次諧波電流，降低電網電壓正弦波畸變率，同時為基波提供容性無功提高線路的功率因數達到降低損耗節約電能凈化電網的目的。To handle this problem, the mathematical model of distribution optimal operation was set up in the paper. a specific method named genetic algorithm, which was refined by the sensitivity methods applied in the model
針對這一問題，本文提出了諧波畸變情況下對電網進行無功優化規劃的模型，給出了用遺傳演算法進行求解的具體步驟並通過靈敏度方法對遺傳演算法進行了改進。This paper introduces the ac sampling arithmetic and emphasizes the study of measurement arithmetic under the unbalanced and distorted condition
本文研究和給出電氣量測量交流采樣的演算法，著重研究三相不平衡及波形畸變工況下無功功率的測量演算法。分享友人